Polycom CX5500 Unified Conference Station Administrator’s Guide 1.1.0
Polycom, Inc. 142
In the reg-advanced.cfg template shown next, when you make a call using line 1, the name you enter in
reg.1.displayname will display as your caller ID, in this case Lisa. The parameter reg.x.type is left
in the default private, which indicates that the registration will use standard call signaling.
Set Up Server Redundancy
Server redundancy is often required in VoIP deployments to ensure continuity of phone service if, for
example, where the call server needs to be taken offline for maintenance, the server fails, or the
connection between the phone and the server fails. The table Set Up Server Redundancy points to
several parameters you can configure.
Two types of redundancy are possible:
● Failover In this mode, full phone system functionality is preserved by having a second call server
of equivalent capability take over from the server that went down/off-line. Use this mode of
operation with DNS mechanisms or ‘IP Address Moving’ from the primary to the back-up server.